Air quality study

Xem 1-20 trên 72 kết quả Air quality study
  • Healthy indoor air is a fundamental human right, and in unventilated rooms is affected by outdoor air quality. Studies are on-going on the effect of the presence of the current „strange black soot‟ in Port Harcourt, Nigeria on microbial air quality, but it is of essence to have baseline data for comparison. This study presents such data from two sources; work carried out in our laboratory and a snapshot of all published literature on microbial air quality in Port Harcourt, prior to date.

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  • This book provides a comprehensive compilation of chapters in air quality modelling, monitoring, exposure, health and control. The book consists of two volumes. Air Pollution – Monitoring, Modelling and Health mainly consist of chapters describing pioneering research findings in air quality monitoring, modelling, exposure and health; Air Pollution – Monitoring, Modelling, Health and Control comprises research findings on air quality monitoring, modelling, exposure, health and control.

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  • This study to develop AQ pollutant datasets for each of the constituent countries of the UK has been commissioned by Defra in order to better inform energy and environmental policy-makers within the Devolved Administrations in their pursuit of objectives set by the Air Quality Strategy for England, Scotland, Wales and Northern Ireland (AQS for ESWNI). These objectives also contribute to the UK’s targets as a whole in terms of meeting both national and international targets on both local and transboundary air pollution....

    pdf117p luuhuong0402 29-09-2012 53 7   Download

  • Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài:Mobile Air Quality Studies (MAQS)-an international project

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  • We address air quality (AQ) forecasting as a regression problem employing computational intelligence (CI) methods for the Gdansk Metropolitan Area (GMA) in Poland and the Thessaloniki Metropolitan Area (TMA) in Greece. Linear Regression as well as Artificial Neural Network models are developed, accompanied by Random Forest models, for five locations per study area and for a dataset of limited feature dimensionality.

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  • Co-benefits of improving taxi system in Ha Long city, Quang Ninh province were studied. Three areas and nine routes in the urban area of Ha Long were selected for conducting this study. Information on the technical specifications of the taxi system was collected by 130 questionnaires. Taxi volume on nine selected routes was determined by vehicle counting. Realtime information on the driving behavior of taxis was obtained by GPS. Collected data were processed to generate input files to run IVE model associated with the base state and 4 selected air pollution control scenarios.

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  • This study aimed to determine bacteriological quality of indoor air in neonatal wards at tertiary hospitals and assess antibiotic resistance patterns of isolated bacteria. Passive air sampling was performed to appraise bacteriological indoor air quality employing the gravity settle plate method to monitor air quality in the morning and afternoon. Each procedure was performed in duplicate on Nutrient Agar plates for 30 and 60 minutes. A total of 75 bacteria were isolated and subjected to antibiotic sensitivity tests using the Kirby-Bauer’s disk diffusion method.

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  • According to the abovementioned rationales, it is important to carry out study on microbiological air quality analysis based on fungal count in working rooms of “X” hospital. This study is very important because air is one of transmission media for microbes responsible for human infection.

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  • The field of indoor air science is of growing interest and concern given that modern society spends the better part of each day indoors. Since the indoor air environment is a major, continual exposure medium for occupants, it is important to study what is present and if and how it affects the health and comfort of occupants.

    pdf252p crazy_sms 10-05-2012 94 26   Download

  • A cross sectional descriptive study conducted in Benghazi centre of infectious diseases and immunity (BCIDI) during winter and spring from December 2013 to April 2014. Samples were collected by using the settled plate techniques for the enumeration of bacterial isolates. The air specimens were collected three times; in the morning between the hours of 9 am and 10 am, in the afternoon between 2 noon and 3 pm and in the evening between the hours of 7 pm and 8pm for two seasons.

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  • Clean air is basic requirement of living organisms. But now a day, due to the unplanned growth, development and vehicular boom, air becomes polluted. Pollutants of major public health concern include particulate matter, carbon monoxide, ozone, nitrogen dioxide and sulfur dioxide and that can pose a serious threat to human health. In the present study, prime air pollutants (PM10, PM2.5, SO2 and NO2) were estimated in seven stations of Dahej area.

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  • Indoor air pollution which poses a critical threat to human health with ambient and household air pollution through exposure to pollutants in urban and rural areas in India. The present study was undertaken with the objective to assess the health problems faced by tribal household kitchens. The study was carried out in Udaipur district of Rajasthan state.

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  • Paso del Norte’s growth has had serious environmental consequences, particularly for air quality, which is the worst on the U.S.–Mexico border. Ciudad Juárez exceeds national ambient air quality standards (official norms) for ozone, carbon monoxide, and particulate matter less than 10 microns in diameter (PM10), and El Paso exceeds national ambient air quality standards for ozone, PM10, and carbon monoxide. An overwhelming body of evidence links such air pollution to respiratory and cardiovascular disease, and to premature mortality (U.S. EPA 1999).

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  • Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: Tobacco smoke particles and indoor air quality (ToPIQ) - the protocol of a new study

    pdf18p panasonic09 13-01-2012 41 2   Download

  • Land cover classification is one of the main components of the modern weather research and forecasting models, which can influence the meteorological variable, and in turn the concentration of air pollutants . In this study the impact of using two traditional land use classifications, the United States Geological Survey (USGS) and the Moderate-resolution Imaging Spectroradiometer (MODIS), were evaluated. The Weather Research and Forecasting model (WRF, version 3.2.1) was run for the period 18 - 22 August, 2014 (dry season) at a grid spacing of 3 km centered on the city of Manaus.

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  • Microbial contamination of the Operation theatres (OT‟s) continues to increase the prevalence of nosocomial infections. Our study evaluates the microbial contamination using various air sampling techniques in OT‟s and find a suitable technique to assess air quality. A total 151 air samples were collected from various OT‟s of our tertiary care centre.76 samples were collected by an active method using an air slit sampler and 75 samples were collected by passive settle plate method using 5% Sheep blood agar in 9cm petri-plates.

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  • In this paper, three machine learning models have been applied to predict and fill in the missing monitoring data of air quality for Gia Lam and Nha Trang stations in Hanoi and Khanh Hoa respectively, including Autoregressive Moving Average (ARMA), Artificial Neural Network (ANN), and Support Vector Regression (SVR). Two air pollutants being NO2 and PM10 were selected for this study.

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  • Researches on indoor air quality in Ha Noi as well as in Viet Nam are scarce. Recently, Quang et al. conducted a study on the number concentration of ultrafine particles in indoor and outdoor air in Ha Noi [3]. Occurrence of phthalate diesters in indoor air in northern Viet Nam was investigated by Tran et al. [4]. Tran et al. studied about cyclic and linear siloxanes in indoor air in northern cities in Viet Nam [5].

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  • Bacterial contamination of operation theatres is a major risk factor for increased incidence of surgical site and nosocomial infections in hospitals. Now a day the evaluation of the level of microbial air contamination in places at risk is considered to be a basic step towards prevention. The main aim of the study was to estimate microbial air contamination of operation theatres in our hospital by settle plate method (Passive sampling). Objective of the study was to monitor quality of air in the form of bacterial load in operation theatres.

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  • Present work was carried out to assess the physico-chemical parameters of water samples of Kanigiri reservoir of River Penna during November 2016 to May 2017 for a period of seven months. Various water quality parameters including Air temperature, Water temperature, pH, Turbidity, total alkalinity, total hardness, Free CO2, DO, BOD, Chlorides, TDS and total ammonia were estimated whereas, correlation coefficients between different parameters of both the stations upstream and downstream were also analysed.

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